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sashaice [31]
3 years ago
10

What type of matter is gravel

Chemistry
1 answer:
GREYUIT [131]3 years ago
5 0

Gravel is a solid, opaque, heterogenous mixture.

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For which of the following aqueous solutions would one expect to have the largest van’t Hoff factor (i)? a. 0.050 m NaCl b. 0.50
ira [324]

Answer:

The van't hoff factor of 0.500m K₂SO₄ will be highest.

Explanation:

Van't Hoff factor was introduced for better understanding of colligative property of a solution.

By definition it is the ratio of actual number of particles or ions or associated molecules formed when a solute is dissolved to the number of particles expected from the mass dissolved.

a) For NaCl the van't Hoff factor is 2

b) For K₂SO₄ the van't Hoff factor is 3 [it will dissociate to give three ions one sulfate ion and two potassium ions]

Out of 0.500m and 0.050m K₂SO₄, the van't hoff factor of 0.500m K₂SO₄ will be more.

c) The van't Hoff factor for glucose is one as it is a non electrolyte and will not dissociate.

7 0
3 years ago
Which statement best describes how electrons till orbitals in the penodic table?
nordsb [41]

Answer:

Electrons fill orbitals in order of increasing orbital energy

Explanation:

Apex

8 0
3 years ago
How many hydrogen moles are in 2.5 moles of aspartame c14h18n2o5
STALIN [3.7K]
Firstly, we need to convert 3g aspartame into moles aspartame. In order to do this we have to find the molecular mass of aspartame (the total weight of each atom of the molecule combined. This figure can be used to construct a conversion factor so that the grams may be converted into moles. Molecular weights for each atom can be found on any periodic table. Avagadro's number (6.022*10^23) is a constant value that expresses the number of molecules in one mole of a substance. 

The molecular weight for aspartame is 294.3 grams per mole. 

The process of finding how many atoms of H there are in 3.00g of aspartame would be like this: 

1. 3g * 1mol/294.3g = .01mol aspartame (this is converting grams to moles) 

2. .01mol * 6.022*10^23 = 6.022*10^21 (This is finding the number of molecules) 

3. (6.022*10^21) * 18 = 1.08*10^23 

This 3rd calculation is done because in part 2, you calculated the number of molecules of aspartame there were in 3g. In each molecule of aspartame there are 18 hydrogen atoms. So the final answer is: 
1.08*10^23 hydrogen atoms.
3 0
3 years ago
What term describes the smallest unit that can perform all of the functions necessary for life
Jobisdone [24]

Answer:

Cell

A cell is the smallest unit of a living thing. Cells are the basic building blocks of all organisms

5 0
3 years ago
We’re did the pollution from acid rain and the factory eventually end up
Dimas [21]

Answer:

it ends up in our dirt and oceans/bodies of water

8 0
3 years ago
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